What Problems Does a 2020 Chevy Blazer Have?
The 2020 Chevrolet Blazer is a midsize crossover with sharp styling, a comfortable cabin, and a turbocharged or V6 powertrain depending on trim.
Like many first-year or early-cycle redesigns, it also has a predictable set of owner complaints that buyers should understand before shopping used.
If you are asking what problems does a 2020 Chevy Blazer have, the most common concerns involve transmission behavior, electrical glitches, infotainment faults, and occasional quality-control issues.
Knowing the patterns helps you separate a normal used-car inspection from a repair risk.
Transmission Shifting Complaints
One of the most discussed issues with the 2020 Blazer involves the 9-speed automatic transmission.
Some owners report rough shifting, hesitation during acceleration, or inconsistent gear changes at lower speeds.
These symptoms may appear as:
- Delayed engagement when shifting from Park to Drive
- Harsh or abrupt upshifts
- Surging or shuddering at steady speeds
- Poor responsiveness when merging or passing
In many GM vehicles, transmission calibration updates and software flashes can improve drivability.
If you are test-driving a used Blazer, pay attention to cold starts, stop-and-go traffic, and low-speed maneuvers because that is where problems often show up first.
Infotainment and Screen Issues
The 2020 Blazer uses Chevrolet’s Infotainment 3 system, which is generally easy to use but not always trouble-free.
Some owners report freezing screens, Bluetooth pairing failures, and Apple CarPlay or Android Auto connection problems.
Common infotainment complaints include:
- Touchscreen lag or unresponsive inputs
- Audio cutting out briefly
- Phone projection disconnecting unexpectedly
- Navigation or display glitches after software updates
Because this system is central to climate controls, audio, and smartphone integration on many trims, even minor bugs can be frustrating.
During a test drive, connect your phone, check volume controls, and make sure the display responds normally after several minutes of use.
Electrical and Battery Concerns
Electrical issues are another area worth watching on the 2020 Chevy Blazer.
These can range from minor warning lights to battery drain concerns, intermittent accessory failures, or erratic behavior from sensors and modules.
Owners have reported:
- Random warning lights on the instrument cluster
- Dead battery after sitting for a short period
- Power liftgate or accessory malfunctions
- Intermittent start-up problems
Modern vehicles rely on multiple control modules, so a weak battery or software fault can create a chain of symptoms.
Before buying, ask whether the battery has been replaced, whether diagnostic trouble codes were found, and whether any recalls or service bulletins were addressed.
Engine Performance and Fuel Economy Complaints
The 2020 Blazer was offered with a 2.5L four-cylinder, a 2.0L turbocharged four-cylinder, and a 3.6L V6.
While none of these engines is widely considered a major failure point, the 2.0L turbo and 9-speed combination can feel less refined than some buyers expect.
Some owners note:
- Turbo lag during quick acceleration
- Engine noise under load
- Fuel economy that falls short of expectations
- Occasional rough idle or hesitation
The 3.6L V6 offers stronger performance, but it may consume more fuel in real-world driving.
The 2.5L base engine is adequate for commuting but can feel underpowered when the vehicle is fully loaded.
If you want the best balance of power and day-to-day smoothness, test each powertrain rather than relying on brochure numbers.
Interior Quality and Fit-and-Finish Issues
The Blazer’s cabin looks upscale for the segment, but some owners have pointed to trim, materials, and assembly concerns.
These are not usually mechanical failures, but they can affect long-term satisfaction.
Reported interior complaints include:
- Rattles or squeaks from the dashboard or door panels
- Loose-feeling trim pieces
- Seat comfort complaints on longer drives
- Wear on high-touch surfaces sooner than expected
Inspect the interior carefully for uneven panel gaps, damaged controls, and signs of heavy wear on the driver’s seat bolster, steering wheel, and center console.
Small quality issues can hint at how the vehicle was maintained overall.
Visibility and Practicality Tradeoffs
Some issues with the 2020 Blazer are not defects but design tradeoffs that owners later describe as problems.
Rear visibility is one of the biggest examples.
The styling creates thick rear pillars and a narrow back window, which can make parking and lane changes harder than in some rivals.
Practical drawbacks to consider include:
- Limited rearward visibility
- Smaller cargo area than boxier competitors
- Reduced rear headroom compared with some midsize SUVs
- Less family-friendly packaging than certain rivals
If your driving involves tight urban parking or frequent cargo hauling, these factors matter as much as mechanical reliability.
A short test drive may not reveal them, so spend time with the vehicle in a parking lot and on a highway before deciding.
Recalls and Service Bulletins to Check
When researching what problems does a 2020 Chevy Blazer have, it is important to review recall history and technical service bulletins.
Recalls address safety-related defects, while service bulletins can point to known issues and factory fixes.
Before buying, confirm whether the following were addressed:
- Open safety recalls
- Software updates for transmission or infotainment systems
- Battery or charging-related repair history
- Dealer-installed fixes for known module or sensor issues
A clean Carfax or AutoCheck report is useful, but it is not enough on its own.
A Chevrolet dealer can check the VIN for outstanding recalls and completed warranty repairs.
What to Inspect on a Used 2020 Chevy Blazer
A careful inspection can reveal whether a vehicle has been trouble-free or repeatedly repaired.
Focus on the systems most likely to cause complaints in this model year.
Test-drive checklist
- Check for hesitation, harsh shifts, and delayed engagement
- Test infotainment startup, Bluetooth, and smartphone mirroring
- Watch for warning lights or messages on the dash
- Listen for rattles over rough pavement
- Verify that climate controls and power accessories work correctly
Service-history checklist
- Regular oil changes and fluid maintenance
- Transmission service or dealer software updates
- Battery replacement records
- Any repair invoices for electrical or infotainment complaints
If the seller cannot provide maintenance records, ask for a pre-purchase inspection from an independent mechanic or Chevrolet specialist.
That step is especially valuable on vehicles with intermittent electrical symptoms, because those can be hard to diagnose during a quick test drive.
Is the 2020 Chevy Blazer Reliable?
The 2020 Blazer is best viewed as a style-forward crossover with average-to-mixed long-term reliability rather than a class leader.
Many owners enjoy it with no major trouble, but transmission complaints, software glitches, and electrical issues are common enough that careful shopping matters.
If you find a well-maintained example with documented repairs, updated software, and a clean diagnostic scan, it can be a solid used SUV.
If the vehicle already shows shifting issues, repeated battery drain, or unresolved infotainment bugs, it may be smarter to keep looking.
Who Should Consider a 2020 Chevy Blazer?
The 2020 Blazer fits drivers who want a sporty appearance, comfortable front seating, and an available V6 with stronger acceleration.
It may be less ideal for buyers who prioritize maximum cargo space, exceptional visibility, or the lowest possible ownership hassle.
It tends to make the most sense for:
- Commuters who want a midsize SUV with a more upscale look
- Drivers who value road comfort and style over boxy utility
- Shoppers willing to verify maintenance and software updates before purchase
It is less appealing for buyers who need the easiest rear visibility, the most cargo room, or a vehicle with a spotless reputation for transmission smoothness and electronics consistency.